Christina's Research


Christina - show some images (screenshot of BLAST result) - DR. B

Week 10:
(show image or data, not just summary or what you did) - Dr. B
  • Finished Characterization
  • Concentrated Protein
  • FPLC
  • Concentrated FPLC product

Week 9:
  • Finished Expression
  • Finished Purification
  • Began Characterization

Week 8:
  • Mini Prep Colonies
  • Send to DNA sequencing
  • Received Results and Blasted them
  • Colony 6 worked

  • Began Expression with Transformation into BL21(DE3)

Week 7:
  • Received new primer and diluted it
  • Restarted Cloning
  • PCR off of pNIC-Bsa4 with the old gene sequence in it

  • Cut accepting vector (pNIC-Bsa4)

  • Cohesive End Generation
  • Annealing and Transformation
  • Overnight Growth

Week 6:
Christina - ok good deal. Don't bother including .docx links here - just keep those in your Google Docs. But rather show the most critical information of your results here (either data or images like the one below)


  • Began Protein Purification
  • Made SDS-Page Gels
  • Began Protein Characterization
  • Did not see our protein in the Elutions
  • Decided that it was because our protein had a trans-membrane section encoded by the first few residues
  • Confirmed this using TMPRED
TMPRED.png
TMPRED graph. The beginning residues are over 1000 meaning that they are probably hydrophobic.

  • Ordered new Custom Forward Primers


Week 5:

  • Received results from sequencing.
  • After blasting the results, both forward and reverse sequences matched the FrTuHP gene.
  • Successful cloning of FrTuHP gene into pNIC-Bsa 4
  • Began Protein Expression

Week 4:


  • Received results from sequencing.
  • After blasting the results all the forward sequences matched the FrTuHP gene except the last 200 bp were missing.
  • After also blasting the reverse sequences both colonies 2 and 3 matched all of the FrTuHP gene without any missing base pairs.
Blast_result_3F.png
Blast results for the forward sequence.
Blast_result_3R.png
Blast results for the reverse sequence.

  • Grew up colony 2 overnight in 80mL of LB
  • Spun down and Midi prep the colonies.
  • Sent those results to sequencing with forward and reverse primers.
  • Completed Virtual Screening Refresher

Week 3:

  • PCR amplification of FrTuHP from pUC19 (scaled up version)
RP_FrTuHP_pNIC_PCR_Scaled_up.docx.JPG
Gel check of PCR. Lane 2: ladder. Land 3-7: PCR product with 4mM MgCl2. Lane 8: No DNA control.

  • Cut pNIC-Bsa 4 accepting vector
RP_cut_pNIC_BSA4.JPG
Gel check for the restriction enzyme digest of the pNIC-Bsa 4 vector. Lane 2: ladder. Lane 3: uncut plasmid. Lane 4: cut pNIC-Bsa 4.

  • Cohesive end generation of both accepting vector and PCR insert
  • Annealing and Transformation
  • Overnight growth of 4 colonies and Miniprep of those colonies
  • Sent Miniprep results to sequencing with colonies 1, 2, 3, and 4 having forward primers and 2 and 3 also having reverse primers.
  • Completed PyMOL refresher

Week 2:

  • Received results from sequencing but the results contained long sections of N's in the middle of the sequence.
  • Restarted pNIC-Bsa 4 cloning.

Week 1:






  • Mini prep pNIC-Bsa 4 cloning colonies that were spun down over the summer.
  • Sent Mini prep results to DNA sequencing

Transformation Efficiency

SAM_0382.JPG
Transformation of 25ng of pGBR22 plasmid with transformation efficiency of 192,000


SAM_0393.JPG
Transformation of 5ng of pGBR22 plasmid with a transformation efficiency of 56,000


SAM_0394.JPG
Transformation of 1ng of pGBR22 plasmid with a transformation efficiency of 152,000


RE Digest Gel

RPKPpGBR22gel.JPG
Restriction Enzyme Digest Gel of pGFP. Lane 2: Ladder. Lane 5: EcoRI. Lane 7: PvuII. Lane 8: EcoRI + PvuII. Lane 9: uncut pGFP


PCR #1 pGBR22

RPKPPCR.JPG
PCR gel of pGBR22. Lane 2: Ladder. Lane 3: A 0.3 ng of plasmid. Lane 4: B 3 ng of plasmid. Lane 5: C 30 ng of plasmid. Lane 6: D 0 ng no DNA control.


PCR #2 GREEN